Improvement in adjustable bevels



J. A. TRAUT Improvement in Adjustable Beveis.

Patented May 9,1871.

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STANLEY RULE AND LEVEL GOMPAN Y, OF SAMEPLAGE.

Letters Patent No. 114,626, dated May 9, 1871.

IMPROVEMENT lN ADJUSTABLE BEVELS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern:

Be it known that I, J USTUS A. TRAUT, of New Britain, county of Hartfordand State of'Gonnecticut, have invented certain new and usefulImprovements in the Manufacture of Carpenters Bevels; and, to enableothers skilled in the art to make the same, I will proceed to describe,referring to the drawing, in' which the same letters indicate like partsin each of the figures.

' The nature of this invention consists in providing the griping-boltwith an enlarged conical-shapedhead, fitted closely into a slit openingin the blade, so that, when the parts are compressed firmly together bya thumb-nut or its equivalent, the conical-shaped head, with theelongated hub, will hold the blade firmly in a desired fixed position.

It further consists in providing the face surface of the conical-shapedhead with a scale, to indicate the angle in which it may be desirable toset the blade with the stock, thus avoiding the annoying difficulty ofhaving the "blade easily misplaced, as is the case with those now inuse.

In the accompanying drawing- Figure l is a side view of this invention.

Figure 2 is an edge-section view, showing the construction of thisinvention.

Figure 3 is an enlarged sectional view of the same.

Figure 4 is a plan view of the bolt and head.

Figure 5 is a cross-sctiontaken in the linexx, fi 2.

o a are thetwo parts of a skeleton stock.

That portion of the stock constituting the stock proper is filled withwood, I), or other suitable material.

The circular or end portions of the metal stock are provided with anorifice and depressions, which materially lighten the metal of thestock.

The ends-of the stock opposite to' that in which the blade is securedare fastened together by a rivet or bolt, 0.

d is a conical-shaped head-of the bolt e', and is fitted closely and towork freely into a corresponding cone-shaped orifice, d, in one end ofone side of the stock d.

llhis head and bolt 0 are provided with an elongated hub, f, which isfitted closely and works freely in the slit opening 9, formed in theblade h in the common way. i

It will be observed that provision is made so that neither the insidesurface of the bolt-head d shall bottom against the blade h,'nor the hubfagaiust the stock a. i

tis the'outside surface of the conical-shaped head (1 oi'the bolt 0, andis provided with a scale, a, or numerical divisions of a circle, andhaving an indicatingmark, It, upon the margin of the end of the stock;

m is a thumb-nut fitted to the screw-bolt e' in the common way.

Now, it will be seen that, by turning the blade h in the stock so thatthe lines la It shall be one directly in line with each other, the bladewill be at right angles with the stock, and, by turning up the thumb-nutor its equivalent, the blade will, by the united action of the'conicalfriction-head d and hub: f, be firmly held in a .fixed position, therebyavoiding the heretofore annoyance of having the blade become misplaced.

I believe I have thus shown the nature, construction, and advantage ofthis invention so as to enable others skilled in the art to make and usethe same therefrom.

What I claim, and desire to secure by Letters Patent, is

1. As an improved article of manufacture, a carpenters bevel, theconical-shaped orifice, with a conicalshaped bolt-head, d, and hub,fl-stook and blade at h, substantially as and for the purpose set forth.

2. In combination with the conical-shaped head (I and stock a, theindicating-characters at, substantially as and forthe purpose set forth.

' J USTUS A. TRAUT.

Witnesses;

S. P. WILLIAMS,

JEREMY W. BLIss.

